<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        @font-face {
            font-family: 'iconfont';
            src: url('font/iconfont.ttf?t=1656768109335') format('truetype');
        }
        div {
            position: relative;
            width: 200px;
            height: 50px;
            border: 1px solid red;
        }

        div::after {
            position: absolute;
            top: 10px;
            right: 10px;
            font-family: "iconfont" !important;
            content: '\e6cd';
        }
    </style>
</head>

<body>
    <div></div>
</body>

</html>